Patents by Inventor Peter S. Sims

Peter S. Sims has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5002687
    Abstract: An improved alkaline enzymatic fabric-washing composition is disclosed comprising a surface-active material, detergency builders, an enzyme, a peroxide compound bleach and a peroxyacid bleach precursor of the formula: ##STR1## wherein R is an unsubstituted alkyl group containing 1 to 9 carbon atoms or a phenyl group; and M is hydrogen, alkali metal, alkaline earth metal, ammonium or alkyl or hydroxyalkyl substituted ammonium cation. The composition is effective for washing fabrics at the low temperature region of 40.degree. C. and below.
    Type: Grant
    Filed: April 13, 1989
    Date of Patent: March 26, 1991
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: David W. Roberts, Peter S. Sims, David W. Thornthwaite
  • Patent number: 4923631
    Abstract: Peracid bleach-stable perfume compositions comprise components which do not contain alkenyl or alkynyl groups and have a PSV of at least about 65% selected from: saturated alcohols, esters, aromatic ketones, lactones, nitriles, ethers, acetals, phenols, hydrocarbons and aromatic nitromusks and mixtures thereof.The perfume compositions are used in bleach and/or detergent compositions containing a peracid bleach.
    Type: Grant
    Filed: June 27, 1988
    Date of Patent: May 8, 1990
    Assignee: Lever Brothers Company
    Inventors: Peter S. Sims, Peter Carter
  • Patent number: 4259200
    Abstract: The stability of ethylene diamine tetra-(methylene phosphate)--EDTMA--and diethylene triamine penta-(methylene phosphonate)--DTPMP--incorporated as peracid stabilizer in bleaching and cleaning compositions comprising a percompound and an organic activator for said percompound is improved if said phosphonate compound is present as a complex of a metal ion selected from the group consisting of calcium, magnesium, zinc and aluminium ions, the molar ratio of said metal ion to said phosphonate compound in the complex being at least 1:1. Compositions comprising a percompound bleach, an organic activator and said metal complex of EDTMP or of DTPMP are provided.
    Type: Grant
    Filed: March 31, 1980
    Date of Patent: March 31, 1981
    Assignee: Lever Brothers Company
    Inventors: Peter S. Sims, Robin S. Heslam, Richard L. Morris